Animal dip



Patented if... an. 1931 UNITED, STATES PATENT; OFFICE KARL BRQDEBSEN ANDWERNER EXT, or nnssAU m annan'r, GERMANY, assrcmons, BY mnsnnASSIGNMENTS, 'rowm'rnnor cnnnroan comramz, nm, or nEw'Yonx,

N. Y., A CORPORATION OF NEW YORK- mmune 80 Drawing. Application filed.Iay 14, 1926, Serial No. 108,199, and in Germany June 2, 1925.

mechanical stirring of the bath. This defect detracts from theircertainty of action.

Accordin to this invention, preparations in powdered form, which arefree from the foregoing soluble parasite poison: with an insoluble onein high example sulp ur, arsenic. trisulphide or other insolubleinsecticides. The composition of the preparation maybe such that thecolloidal form is developed wholly or in part only. during the operationof dissolving'or on exposure to air on the animal. This result can beattained by adding sodium's'ulpharsenite to the preparation, or aJQiXt QIfe of an alkali, such as sodium carbonate, and

arsenic trisulphide,'which isa oison, dissolution occurring on addition0 water.

The preparatlon may advantageously contain a wetting agent, a'protectivecolloid,'an agent for protecting fibers. a

The following example illustrates the invention, the parts' beingbyweight: g

. '25; parts of sodium'arsenite, '50 parts of a sulfur preparationcontaining 30% of colloidal sulfur and a. rotective colloid, such forexample as that 0? U. S. Patent 1,048,161, 10 parts of anhydrous sodiumcarbonate, 10 parts of owdered sulphur and 5- arts of arsenic tmsulphideare ground 'toget er in a ballmill. For preparing the-bath a suitablequantity of the powder thus made is added to the water by which it iswetted readily and taken up as compared with the known sulphitecellulose liquor) (see,

defect aremade by combining ay' dis ersed or colloidal --form, for

It is obvious to those skilled in the art that'our present invention isnot limited to the foregoing example or to the details given therein.Thus for instance cell fpitch (from or example,

U. S. Patent 1,419,497, lines 2730, and U.v S.

Patent 1,441,240, lines 35-37) may be added as protective colloid andagent for protecting fibres or the quantities of the ingredients can bevaried in wide limits.

' What we claim is-- 1. Animal dip containing a water soluble persedsulphur.

2. Animal dip containing a water soluble arsemcal compound,'acolloidally dispersed .arsenical 'compound' and colloidally dis-.

arsenical compound and. colloidally dispersed sulphur.

3. Animal dip containing a water soluble 'arsenical compound,- acolloidally dispersed arsenic'a-l compound, colloidally dispersedsulphur and a protective colloid.

i 4. Animal dip containing sodium arsenite and colloidally dispersed.sulphur.

5. Animal 'dip containing sodium arsenite, a colloidally dispersedarsenical compound and colloidally dispersed sulphur.

' v 6. Animal dip containing sodium arsenite,

colloidally dispersed sulphur and a protective collold.

7 Animal .dip containing sodium arsenite,

colloidally dispersed arsenic trisulphide and colloidally dispersedsulphur.

8. Animal dip containing sodium arsenite, colloidally dispersed arsenictrisulphide, colcolloi r 9. Animal dip containing sodium arsenite,

colloidally dispersed arsenic trisulphide. col--- loidally dispersedsulphur and cell pitch. In testimonywhereof we aflix our signatures.

WERNER EXL.

preparations. -The bath does not settle and is very certain in itsaction.

' KARL BRODERSEN'L a colloidally dispersed arsenical compound, v

. loidally dispersed fsulphnr and a protective

